High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 220325
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC FRI SEP 22 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT
OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN
TWICE THE SIGNIFICANT WAVE HEIGHT.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0000 UTC SEP 22 2017.
24 HOUR FORECAST VALID 0000 UTC SEP 23 2017.
48 HOUR FORECAST VALID 0000 UTC SEP 24 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N161W 1011 MB MOVING N SLOWLY. TROUGH FROM LOW TO 13N150W TO
11N140W NEARLY STATIONARY. ISOLATED MODERATE TO LOCALLY STRONG TSTMS
FROM 08N TO 15N BETWEEN 155W AND 160W. ISOLATED MODERATE TSTMS
WITHIN 60 NM OF LINE FROM 15N151W TO 14N154W...AND FROM 09N TO 13N
BETWEEN 160W AND 164W.
.24 HOUR FORECAST LOW 14N161W 1010 MB. TROUGH FROM LOW TO 14N150W TO
11N140W.
.48 HOUR FORECAST LOW 14N162W 1011 MB. TROUGH FROM LOW TO 13N150W TO
09N146W TO 12N140W.

.FRONT FROM 30N170W TO 25N180E TO 22N170E TO 21N165E TO 22N160E
NEARLY STATIONARY. ISOLATED MODERATE TSTMS WITHIN 120 NM N OF FRONT
W OF 179W.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N173W TO 24N176E.
.48 HOUR FORECAST WEAK TROUGH FROM 29N177W TO 23N174E.

.TROUGH FROM 10N162E TO 08N160E MOVING W 10 KT. SCATTERED MODERATE
TO STRONG TSTMS FROM 05N TO 12N W OF 172E. ISOLATED MODERATE TSTMS
FROM 12N TO 15N BETWEEN 162E AND 167E.
.24 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA.

.TROUGH FROM 13N174W TO 10N175W TO 08N178W MOVING W 10 KT. ISOLATED
MODERATE TSTMS WITHIN 75 NM OF POINT 13N172W...AND FROM 07N TO 10N
BETWEEN 165W AND 170W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.HIGH 30N177E 1021 MB NEARLY STATIONARY. RIDGE FROM HIGH TO 28N160E.
.24 HOUR FORECAST HIGH DISSIPATED. NEW HIGH 28N170E 1020 MB.
.48 HOUR FORECAST HIGH 28N167E 1019 MB.

.RIDGE FROM 30N161W TO 23N174W NEARLY STATIONARY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER ENTIRE FORECAST
AREA.

.ISOLATED MODERATE TSTMS FROM 08N TO 12N BETWEEN 175E AND 179W.

$$

.FORECASTER KINEL. HONOLULU HI.



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